Urea has the interesting and unexpected property of forming solid complexes with many straight-chained organic compounds. So selective is the formation of these complexes with linear aliphatic compounds that it provides a means of separation form the analogous branched and cyclic compounds. Linear esters derived from normal saturated and unsaturated esters give adducts also but not to the same extent. Although many linear aliphatic compounds form adducts, the compounds so formed have varying degrees of stability depending on molecular weight, saturation and the shape of the molecule.
The purpose of this investigation is to determine the effect of the position in the molecule of the carbonyl group in the formation of urea adducts with a series of twenty carbon esters.
","abstract_html":"<p>Urea has the interesting and unexpected property of forming solid complexes with many straight-chained organic compounds. So selective is the formation of these complexes with linear aliphatic compounds that it provides a means of separation form the analogous branched and cyclic compounds. Linear esters derived from normal saturated and unsaturated esters give adducts also but not to the same extent. Although many linear aliphatic compounds form adducts, the compounds so formed have varying degrees of stability depending on molecular weight, saturation and the shape of the molecule.</p><p>The purpose of this investigation is to determine the effect of the position in the molecule of the carbonyl group in the formation of urea adducts with a series of twenty carbon esters.</p>","abstract_has_math":false,"creators":["Johnson, Donald Eugene"],"institution":null,"degree_name":"Master of Arts (M.A.)","degree_level":"Thesis","degree_discipline":"Chemistry","degree_department":null,"school":null,"contributors":["Emerson G. Cobb"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1953,"date_issued":"1953-01-01T08:00:00Z","date_published":"1953-01-01T08:00:00Z","updated_at":"2026-07-24T05:37:06Z","subjects":["Urea","Esters","Chemistry","Physical Sciences and Mathematics"],"languages":[],"rights":[],"rights_urls":["http://rightsstatements.org/vocab/NKC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"https://scholarlycommons.pacific.edu/uop_etds/1216","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Emerson G. Cobb"]},{"key":"dc:creator","label":"Author","values":["Johnson, Donald Eugene"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2018-06-29T08:40:43Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemistry"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Arts (M.A.)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Urea","Esters","Chemistry","Physical Sciences and Mathematics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["http://rightsstatements.org/vocab/NKC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarlycommons.pacific.edu/uop_etds/1216"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Urea has the interesting and unexpected property of forming solid complexes with many straight-chained organic compounds. So selective is the formation of these complexes with linear aliphatic compounds that it provides a means of separation form the analogous branched and cyclic compounds. Linear esters derived from normal saturated and unsaturated esters give adducts also but not to the same extent. Although many linear aliphatic compounds form adducts, the compounds so formed have varying degrees of stability depending on molecular weight, saturation and the shape of the molecule.
The purpose of this investigation is to determine the effect of the position in the molecule of the carbonyl group in the formation of urea adducts with a series of twenty carbon esters.
"]},{"key":"dc:source","label":"Dc Source","values":["32"]},{"key":"dc:title","label":"Title","values":["The urea adducts of certain esters containing twenty carbons"]}]}],"canonical_facts":{"dc:contributor":["Emerson G. Cobb"],"dc:creator":["Johnson, Donald Eugene"],"dc:date.available":["2018-06-29T08:40:43Z"],"dc:description.abstract":["Urea has the interesting and unexpected property of forming solid complexes with many straight-chained organic compounds. So selective is the formation of these complexes with linear aliphatic compounds that it provides a means of separation form the analogous branched and cyclic compounds. Linear esters derived from normal saturated and unsaturated esters give adducts also but not to the same extent. Although many linear aliphatic compounds form adducts, the compounds so formed have varying degrees of stability depending on molecular weight, saturation and the shape of the molecule.
The purpose of this investigation is to determine the effect of the position in the molecule of the carbonyl group in the formation of urea adducts with a series of twenty carbon esters.
"],"dc:identifier":["https://scholarlycommons.pacific.edu/uop_etds/1216"],"dc:rights":["http://rightsstatements.org/vocab/NKC/1.0/"],"dc:source":["32"],"dc:subject":["Urea","Esters","Chemistry","Physical Sciences and Mathematics"],"dc:title":["The urea adducts of certain esters containing twenty carbons"],"thesis:degree_discipline":["Chemistry"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Arts (M.A.)"]},"updated_at":"2026-07-24T05:37:06Z"}